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Howe AK, Baldor LC, Hogan BP.Howe AK, et al. Among authors: baldor lc.Proc Natl Acad Sci U S A. 2005 Oct 4;102(40):14320-5. doi: 10.1073/pnas.0507072102. Epub 2005 Sep 21.Proc Natl Acad Sci U S A. 2005.PMID: 16176981Free PMC article.